Smart phone



2.1 is a front view of a first embodiment of a smart phone showing the new design;

2.2 is a back view thereof;

2.3 is a left view thereof;

2.4 is a right view thereof;

2.5 is a top view thereof;

2.6 is a bottom view thereof;

2.7 is a perspective view thereof;

3.1 is a front view of a second embodiment of a smart phone showing the new design;

3.2 is a back view thereof;

3.3 is a left view thereof;

3.4 is a right view thereof;

3.5 is a top view thereof;

3.6 is a bottom view thereof; and

3.7 is a perspective view thereof.

The broken lines shown in the drawings illustrate portions of the smart phone that form no part of the claimed design. 

CLAIM The ornamental design for a smart phone, as shown and described. 